Extractor



Oct. 23,1934. A. J. scHoLTl-:s

EXTRACTOR Filed June 20, 1933 Het wants Patented Oct. 23,

PATENT ort-ice EXTRACTO!! Albert J. Scholtes, Baltimore, Ma., signor ofone-half to Harry A. Uhler, Plkesville, Md.

Application June 20, 1933, Serial No. 676,725

4 Claims.

l barrels or containers by fluid under pressure.

Another object of the present invention is to provide an extractor ofthis type wherein the air or other uid employed is maintained out ofcon-` tact with the liquid to be extracted, and wherein the expandingmember of the extractor may be introduced throughthe bung-hole of thebarrel and wherein the liquid itself may be withdrawn or ejected throughthe same bung-hole.

A feature of the present invention is that the barrel or keg may beplaced in an upright position with the bung-hole at the center of thetop head of the keg and the liquid may be extracted by an expansiblemember upwardly through the central portion of the barrel, thuseliminating any pomibility of the sagging oi' the expansible membertoward one side of the barrel or keg and insuring the even expulsion ofthe liquid.

A further object of this invention is to provide an expansible memberwhich may be made of rubber or the like; to provide a carrying meanshaving a tube to which the outer end of the expansible member is securedand which may be used for introducing the member into a barrel throughthe bung-hole thereof; the carrying means also serving to introduce airinto the member to expand it and eject the contents of the barreloutwardly through the tube; and to provide means to ilnally puncture orrupture the expansible member after the contents have been completelyejected from the barrel so that the expansible member cannot be used asecond time and will not be subjected unduly to the action of thecontents of the barrel which might injure the taste and other qualitiesof the barrel contents.

A still further. object of the invention is to provide a structurewherein the expansible member may be cheaply packaged in a transparentor otherwise formed wrapper in folded condition for positioning in theextractor while folded, and wherein the wrapper may be fitted with themember in the extractor and left therein out of the way so as not tointerfere with the operation of the device and which may be readilyremoved with the punctured member after use.

The invention also aims at the provision of an improved holder andcoupling for the extractor so that it may be compactly transported orpacked away and may be quickly and easily coupled to the barrel andadvanced into position for use.

With the foregoing and other objects in view.

the invention will be morefully described hereinafter, and will be moreparticularly pointed out in the claims appended hereto.

lIn the drawing, wherein like symbols refer to like or correspondingparts throughout the several views,

Figure 1 is a fragmentary sectional view, partly in elevation, of theimproved extractor coupled in position with the bung of a barrel andready to be advanced into a position for use, the dotted lines showingthe bung-hole stopper partly punched in.

Figure 2 is a detail top plan view of the bung of the barrel.

Figure 3 is a detail bottom plan view of the lower coupling member ofthe device adapted for interlocking engagement with the bung of Figure2.

Figure 4 is a detail side elevation of the expansible member folded andin package form for independent distribution and ready to be inserted inthe device.

Figure 5 is an end view of the same, and

Figure 6 is a vertical section taken through a barrel or keg showing thedevice in position thereon and partially expanded, the arrows indicatingthe direction of flow of the uid being extracted.

'I'he improved extractor comprises a casing or tube 10 of suitablelength which is externally threaded in spaced relation to its upper endfor receiving thereover a clamping cap 11. The upper end of the casing10 is preferably provided with an external annular groove ordepressionwhich faces the inner smooth surface of the clamping cap 11,and which is also preferably provided with a rounded upper edge portion12 to receive thereover and prevent injury to an expansible member 13.

The expansible member 13 maybe made of any suitable material, such asrubber, which may be collapsed or `folded and slid into the casing 10and which has an upper open end adapted to be expanded and rolled overthe rounded bead 12 at the top of the casing. The member 13 may beprovided with a marginal enlargement or bead 14 adapted to engage in theannular groove of the casing and be held tight therein bythe action ofthe clamping nut 11. If desired a packing washer 15 may be placed on theupper end of the` casing 10 between the overturned end of the expansiblemember 13 and the top of the cap 11 for sealing and protecting theexpansible member in the cap. I'he cap 11 is provided in one side with asuitable air receiving valve 16 of the type commonly used on automobiletires or the like and the cap has a substantially radial passage 17 forthe air which leads to the inner side of the cap, as shown in Figure 1.

The cap 11 may also be provided with a suitable relief valve 18 toprevent undue or excessive pressure within the expansible member 13 andthus prevent damage thereto. The upper end of the` cap 11 is providedwith outstanding handles 19 adapted to be grasped for turning the cap 11into and out of clamping position upon the upper end of the casing 10. Apacking nut 20 may be threadedwithin the upper end of the cap 11 and maycompress a packing washer 21 disposed beneath the nut 20 and against ashoulder provided internally intermediate the ends of the cap.

A liquid outlet tube 22 of a diameter less than the internal diameter ofthe cap l1 and casing 10, is disposed axially therein and is sealed inthe upper end of the cap by the packing nut 20 and the packing washer21. The space beneath the packing Washer 21 is open through the lowerportion of the cap to the interior of the expansible member 13. Thelower end of the tube 22 is closed to provide an abutting end 23 adaptedto be used for forcing the plug 24 of a barrel bungring 25 inwardly sothat the tube 22 may follow the plug 24 to the interior of the barrel.The lower end of the tube 22 is also provided with a suitable number oflateral openings 26 which are preferably disposed adjacent the closedend 23, and the lower end of the tube 22 is externally threaded forreceiving thereon a pair of reversely positioned dished washers 27 whichflare outwardly about the tube 22 and which are adapted to be clampedtoward each other to engage the outer end of the expansible member 13for holding the latter at its closed end about the lower end of the tubeand to also seal the expansible member against the tube. The innerwasher is rounded sufficiently to protect the expansible member andprevent injury thereto when sliding the expansible member into and outof the casing 10.

The outer or lower washer 27 extends downwardly in spaced relation aboutthe openings 26 to prevent injury to the expansible member 13 until theentire contents of the barrel is extracted when the expansible membermay be drawn or forced against the openings 26 of the tube to punctureor rupture the member so that it cannot be used again.

It will also be noted that the closed end 23 of the tube is spaceddownwardly a slight distance below the marginal outer edge of the lowerwasher 27 so as to leave passage to the openings 26 clear should thetube be forced all the way through the barrel and against the lowerhead.

The lower end of the casing 10 is externally flanged as at 28. Theflange 28 slides within a rotatable lower locking nut 29 which is openat its lower end and provided at suitable spaced apart points withinwardly extending lugs 30 adapted to engage beneath an outstandingflange 31 and through recesses 32 disposed within the recessed upperside of the bung-ring 25 of the barrel. The nut 29 has radial handles 37by means of which the nut may be turned to couple it to the bung-ring25.

A follower nut or upper coupling member 29' is threaded into the lowercoupling nut 29 against the flange 28 of the casing and may be turneddown thereagainst by radial handles 29". A packing washer 3l liesbetween the flange 31 of the bung-ring 25 and the lower end of thecasing to seal the joint therebetween.

'I'he casing may have, if desired, a relief valve or jet 10 below thecap ll to vent any abnormal pressure accumulating in the casing exteriorto the expansible member 13.

The bung-ring 25 is externally threaded in the usual manner and adaptedto be threaded into the bung-opening or hole of a barrel 33, as shown inFigure 6. The tube 22 has a suitable control valve 35 on its upper endto which is connected a supply pipe 36 which may lead upwardly to anypoint of distribution for the liquid.

As shown in Figures 4 and 5, the expansible member 13 may bemanufactured and packaged as a replacement article. The member 13comprises a rubber bag substantially cylindrical in shape which isannularly pleated or folded into collapsed form as shown with therelatively small diameter top and bottom openings bounded by themarginal beads 14 and 14'. The collapsed member v13 is encased in awrapper 34, which may be transparent as shown or of other suitablematerial, to hold the member 13 folded during handling. The ends of thewrapper 34, as shown in Figure 5, may be folded or closed in anysuitable manner and may be torn open to expose the opposite ends of themember 13 for applying the latter to the tube 22 and within the casing10.

To replace the expansible member 13, the cap 11 is removed from theupper end of the casing 10 and the tube 22 with the used expansiblemember 13 withdrawn. 'I'he upper end of the member 13 may be releasedfrom the top of the casing and the tube 22 may be pushed through thebottom of the casing, when detached from the barrel 33 so that thethreaded washers 27 may be removed from the tube 22 and free the usedmember 13 for replacement.

The ends of the wrapper 34 are now removed and the new member 13 slidupwardly over the reduced lower end of the tube 22. The bead 14 of theexpansible member 13 is stretched and overturned upon the top of thecasing 10, the bead 14 snapping into the exterior groove beneath therounded edge 12 of the casing to anchor the upper end of the member inthe casing. Prior to this the lower bead 14' of the member is expandedover the replaced inner washer 27 and the outer washer 27 is then turnedup against the bead 14 to anchor it to the tube 22 and seal the member13 about the tube. Replacing the cap 11 on the casing clamps the upperend of the member 13 to the casing and the device is ready for use.

In use, the device is assembled, as shown in Figure 1, and the lowercoupling nut or member 29, is engaged in the upper recessed side of thebung-ring 25 and is turned to register the lugs 30 with the recesses 32and to interlock with the flange 31. The upper nut 29' is now turneddown against the flange 28 to compress the washer 3l' between the upperface of the bung-ring 25 and the lower end of the casing 10.

The tube 22 is now forced downwardly with suitable pressure or impact todrive the stopper or plug 24 out of the bung-ring. The tube 22 may nowbe forced downwardly through the clamping cap l1 and the casing 10 so asto draw out the expansible member 13 and carry it with the tubedownwardly through the central portion of the barrel or keg 33 and intothe position shown in Figure 6.

Air under suitable pressure is now supplied through the air inlet valve16 to expand the member 13 and the latter spreads over the upper`surface of the liquid in the keg and exert pressure against the liquidto force it through the openings 26 in the lower end of the tube 22 andupwardly through the tube, the valve 35 and into the supply pipe 36.

As shown in Figure 6, the body of liquid presses uniformly against thelower side of the expansible member 13 and equalizes the expansiblemember so that it will reach entirely across the interior of the barrelor keg 33 and serve as a piston sealed against the sides of the barrelfor ejecting the liquid uniformly from all sides and cause the liquid torise from the bottom of the barrel upwardly through the tube 22. Shoulda constant force of air pressure be supplied through the air inlet valve16, and the valve 35, or other controlling valve which may be located inthe supply pipe 36, be closed any excess pressure of air within theexpansible member 13 and in the barrel 33 will be vented through therelief valve 18 thus preventing injury to the device.

As shown in dotted lines in Figure 6, when the expansible member 13reaches the lower end of the keg or barrel 33 it will conform theretoand lie fiat across the lower head and will flatten out substantiallycompletely, the only portion of the expansible member which is held awayfrom the bottom head being that portion directly engaged by andextending about the lower downwardly flaring washer 27. Finally, theadjacent portion of the expansible member 13 will be forced against thetube 22 over the openings 26 and, by pressure of air, will be puncturedorruptured so that the air will be vented to the tube 22 and the member13 destroyed from further use. 'Ihe expansible members 13, beingrelatively cheap to manufacture may be replenished for each barrel to beemptied, and may be purchased separately in desired lots.

The member 13 is not subjected repeatedly to exposure to the contents ofthe liquid in the barrels and therefore cannot contaminate the liquid.The contents of the keg or barrel are therefore completely extracted byuse of the present device;

As the expansible member is now deflated it, together with the tube 22,may be withdrawn from the barrel 33 when the casing 10 is uncoupled fromthe bung-ring 25 and the device refilled with a new expansible member13.

The invention is such that the interchange of the device from one barrelto another may be effected in a relatively short time and by rela.-

-tively few operations without the exercise of any great amount ofskill.

It is obvious that various changes and modifications may be made in thedetails of construction and design of the above specifically describedembodiment of this invention without departing from the spirit thereof.such changes and modications being restricted only by the scope of thefollowing claims.

What is claimed is:-

1. A liquid dispenser for barrels and the like comprising a tubularcasing, a coupling device mounted on the lower end of the casing forinterlocking engagement with the bung of a barrel, a cap mounted on theupper end o! the casing, a tube slidably mounted through the cap andsupported thereby in the casing, an expansible member sealed at itsouter end about the outer end of the tube, the inner end of saidexpansible member being clamped between said cap and the upper end ofthe casing to anchor the outer end of the expansible member frommovement toward the inner end of the casing, said tube having an openingin its outer end beyond the expansible member, and air pressure supplymeans connected to the cap for admitting air under pressure thereto andinto the expansible member, said tube adapted to be moved lengthwisethrough the casing and cap into a barrel and said expansible memberadapted to be distended about the tube when moved into the barrel andadapted to be expanded by air pressure to displace the liquid in thebarrel.

2. A' liquid extractor for barrels and the like, comprising a tubularcasing, a cap on the outer end of the casing, a tube sealed through thecap and extending into the casing, an expansible member clamped at itsopen end between the casing and the cap, said expansible member havingan opposite closed end, curved washers secured 100 about the outer endof the tube and engaging said expansible member therebetween to seal theexpansible member against the tube and protect the expansible memberagainst abrupt bending, said tube having lateral openings therein forreceiving liquid and the lowermost washer overhanging said openings toprotect the same, said tube adapted to be forced through the bung-holeof a barrel, and air pressure supply means connected to the cap forintroducing air into said expanding member for displacing liquid in thebarrel.

3. A liquid extractor for barrels, comprising a casing having a cap, atube slidably mounted in the cap for axial movement through the casing,an interchangeable expansible member mounted in the casing anddetachably anchored at its upper end between the top of the casing andits cap, detachable holding means carried by the lower end of the tubeand engaging the lower end of the expansible member, means fordetachably securing the lower end of the casing over the bung-hole of abarrel, and means for introducing air under pressure through the capdirectly to the interior of the expansible member.

4. A liquid extractor for barrels, comprising a casing having a cap, atube slidably mounted in the cap for axial movement through the casing,an interchangeable expansible member mounted in the casing anddetachably anchored at its upper end between the top of the casing andits cap, detachable holding means carried by the lower end of the tubeand engaging the lower end of the expansible member, means fordetachably securing the lower end of the casing over the bung-hole of abarrel, means for introducing air under pressure to the interior of theexpansible member, and a relief valve carried by the casing for ventingair entrapped between the casing and the expansible member and preventthe entrapped air from coming into contact with the liquid in thebarrel.

ALBERT J. SCHOLTES.

